[1]梁莹. 川西中浅层井低密度支撑剂脉冲压裂技术[J].油气井测试,2022,31(02):36-41.[doi:10.19680/j.cnki.1004-4388.2022.02.007]
　LIANG Ying. Pulse fracturing technology with lowdensity proppant for midshallow wells in western Sichuan Basin[J].Well Testing,2022,31(02):36-41.[doi:10.19680/j.cnki.1004-4388.2022.02.007]
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 川西中浅层井低密度支撑剂脉冲压裂技术()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
31
期数:
2022年02
页码:
36-41
栏目:
出版日期:
2022-04-25

文章信息/Info

Title:
 Pulse fracturing technology with lowdensity proppant for midshallow wells in western Sichuan Basin
文章编号:
1004-4388(2022)02-0036-06
作者:
梁莹
 中石化西南石油工程有限公司井下作业分公司 四川 德阳 618000
Author(s):
 LIANG Ying
关键词:
 ; 四川盆地; 沙溪庙组; 低渗气藏; 脉冲压裂; 低密度支撑剂; 纤维; 水平井; 产量
Keywords:
 ; Sichuan Basin;  Shaximiao Formation;  lowpermeability gas reservoir;  pulse fracturing;  lowdensity proppant;  fiber;  horizontal well;  yield
分类号:
TE3573
DOI:
10.19680/j.cnki.1004-4388.2022.02.007
文献标志码:
B
摘要:
 四川盆地低渗气藏运用脉冲压裂技术取得了降本与增效的双重效果，为了经济高效地对低渗气藏进行开发，将低密度支撑剂运用到脉冲压裂中。室内实验和软件模拟结果表明：纤维加量是影响通道率的主要因素；长度9 mm纤维加量为05%时，支撑剂砂团的稳定性较好；对于低密度支撑剂脉冲压裂，采用间隔液用量递增工艺时，有利于形成开放式流动通道网；脉冲间隔2～25 min，排量3～5 m3/min时，为最优工艺参数。在中江气藏沙溪庙组进行了4口水平井的现场应用，平均无阻流量增幅显著，压裂增产效果良好。该技术对川西中浅层低渗致密砂岩水平井压裂具有一定指导作用。
Abstract:
 Pulse fracturing technology has been applied in lowpermeability gas reservoirs of the Sichuan Basin, with lower cost and higher efficiency. To develop lowpermeability gas reservoirs more economically and efficiently, lowdensity proppant was used in pulse fracturing. The results of indoor experiment and software simulation show that the fiber dosage is the main factor affecting the channel rate. When the dosage of fiber with the length of 9 mm is 05%, the stability of proppant sand mass is better. For pulse fracturing with lowdensity proppant, the process of increasing the amount of spacer fluid is conducive to the formation of open flow channel network. When the pulse interval is 225 min and the displacement is 35 m3/min, the operation parameters are optimal. The technology was applied in 4 horizontal wells in Shaximiao Formation of Zhongjiang gas reservoir, demonstrating that the average open flow increases significantly and the fracturing stimulation effect is good. This technology has a certain guiding significance to the fracturing of horizontal wells in midshallow lowpermeability tight sandstone reservoirs in western Sichuan Basin.

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备注/Memo

备注/Memo:
 2021-10-26收稿，2022-01-29修回,2022-02-20接受,2022-04-20网络版发表
中石化西南石油工程有限公司项目“难动用储量合作开发技术研究及先导试验” (XN202008)
梁莹，女，1988年生，硕士,工程师，2014年毕业于西南石油大学化学工程专业，现在从事储层改造工作液及材料的研究工作。
电话 15282820940；Email：scslcly@163.com。通信地址：四川省德阳市金沙江西路699号，邮政编码：618000。
更新日期/Last Update: 2022-05-07